石膏基调湿材料调湿性能试验研究与模拟分析  

Experimental Study and Simulation Analysis of Humidity Control Performance of Gypsum-based Humidity Regulation Materials

作　　者：李曦 冉茂宇[1,2] LI Xi;RAN Maoyu(School of Architecture,Huaqiao University,Xiamen 361021,Fujian,China;Xiamen Key Laboratory of Ecological Building Construction,Xiamen 361021,Fujian,China)

机构地区：[1]华侨大学建筑学院,福建厦门361021 [2]厦门市生态建筑营造重点实验室,福建厦门361021

出　　处：《建筑科学》2025年第2期175-183,共9页Building Science

基　　金：国家自然科学基金项目“基于空调冷凝水回收利用的建筑外表多孔质蒸发与植被绿化降温技术研究”(51678254)。

摘　　要：本研究使用石膏为基材,通过掺入硅胶和氯化钙改性海泡石粉,制备了1种新型的石膏基调湿材料,并对其调湿性能进行了试验研究和模拟分析。试验结果显示,在97.4%相对湿度(RH)条件下,石膏基调湿材料最大平衡含湿量为0.225 g/g,是纯石膏的4.5倍。此外,石膏基调湿材料对外界湿度变化的响应速度也明显优于纯石膏。封闭箱热作用法表明石膏基调湿材料可在周期热作用(18~30℃)下,将室内相对湿度维持在40%~50%RH范围内。模拟结果显示,在建筑实际应用中,石膏基调湿材料展现出较强的室内湿度调节能力,能够将室内相对湿度维持在较小的波动范围。同时,该材料具有降低建筑能耗的潜力,在北京地区的最高潜在节能率可达20.34%,节能效果相较于纯石膏最大可提高至4.61倍。In this study,gypsum was used as the base material to prepare a novel gypsum-based humidity controlling material by incorporating silica gel and calcium chloride modified sepiolite powder.An experimental study and simulation analysis were conducted to evaluate its humidity control performance.The experimental results indicated that the maximum equilibrium moisture content reached 0.225 g/g,which is 4.5 times that of pure gypsum,under conditions of 97.4%relative humidity(RH).Moreover,the response rate of the material to ambient humidity fluctuations notably surpassed that of pure gypsum.The closed-box thermal action method demonstrated that the material could maintain indoor humidity within the range of 40%-50%RH under cyclic thermal conditions(18~30 C).The simulation results showed that the gypsum-based humidity control material exhibited a stronger indoor humidity regulation capability in real building environments,effectively maintaining indoor relative humidity within a smaller fluctuation range.Meanwhile,this material has the potential to reduce building energy consumption,with a maximum potential energy saving rate of 20.34%in Beijing,and its energy-saving effect can be increased up to 4.61 times compared to pure gypsum.

关 键 词：湿度控制 复合材料 石膏 硅胶 海泡石 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]